Finder for photographic cameras.



No. 684,347. Patented Oct. 8, l90l.

, r. A. BROWNE'LL.

FINDER FOR PHOTOGRAPI'IIC CAIERAS.

(lo Iodol.)

Inventor.

J0 Attorney.

Witnesses.

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UNITED STATES PATENT OFFICE.

FRANK A. BROWNELL, OF ROCHESTER, NE\V YORK, ASSIGNOR TO EASTMAN KODAKCOMPANY, OF SAME PLACE.

FINDER FOR PHOTOGRAPHIC CAMERAS.

SPECIFICATION formingpart Of Letters Patent No. 684,347, dated October8, 1901 Original application filed July 25, 1900, Serial No. 24,798.Divided and this application filed February 7, 1901. Serial To all whomit may concern.-

Be it known that I, FRANK A. BRowNELL, of Rochester, in the county ofMonroe and State of New York, have invented certain new and usefulImprovements in Finders for Photographic Cameras; and I do herebydeclare the following to be a full, clear, and exact description of thesame, reference being had to the accompanying drawings, forming a partofthis IO specification, and to the reference-numerals marked thereon.

My present invention has for its object to provide an improved finder orcamera lucida adapted particularly for use on photographic cameras andwhich may be readily applied to cameras of any desired form and in suchmanner that it may be used when the camera is in an upright orhorizontal position; and to these ends it consists in certainimprovements 2o hereinafter described, the novel features being pointedout in the claims at the end of this specification.

In the accompanying drawings, Figure l is a front elevation of aphotographic camera, showing my improved finder applied thereto, thesupportingarms for the finder being shown in section. Fig. 2 is a planview of the finder and its support in the position shown in Fig. 1; Fig.3, a longitudinal sectional View through the finder-support when turnedin another position from that shown in Fig. 1; Fig. 4, a sectional viewtaken on the line a a of Fig. 3; Fig. 5, a perspective view of the partsof the finder-casing separated.

Similar reference-numerals in the several figures indicate similarparts.

I have shown the finder constituting my present invention applied to acamera such as is contained in myprior application, Serial No. 24,798,filed July 25, 1900, of which this application is a division, saidcamera being of the kind adapted to contain rolls of film and embodyinga body or casing 1 and a support or door 2, upon which is arranged tomove the frame or lens-support 3, said camera being also adapted to beused in either a vertical or horizontal position, in which latter it isshown in Fig. 1 of the drawings.

(No model.)

The finder or camera lucida embodies, as usual, a main casing, open infront and on top, provided with a front lens 6 and upper larger lens 7and the inclined mirror 8, the axis of the lens 6 being substantially inthe plane of the axis of the main lens 9 of the camera to which thedevice is to be applied, and as usual in finders of this constructionthere may be substituted for the double convex lens 7 a ground-glassplate.

The main casing of the finder in the present embodiment is composed of asingle stamping of metal, as shown in Fig. 5, embodying the front wall(5 and side walls 10 and having in its upper portion an aperture inwhich the lens 7 is arranged. The rear upper part of this casing-sectionis provided with a small downwardly-extending tongue 11, and the bottomand rear inclined wall of the finder is composed of a plate 12, havinglugs 13 struck therefrom and adapted to engage the lower edge of themirror 8, the side portions or wings 40 of said plate being adapted tolie within the side walls of the casing and to be held in position bythe tongue or lug 11, which is bent down behind it, as shown in Fig. 4,when the partsare assembled. The lugs 41 on the side wings of the plate12 cooperate with the lower side of the lens 7 to hold the latterbeneath the opening in the upper portion of the casing.

14 indicates a plate arranged at the bottom of the main casing, havingthe flanges 15 ex tending upon the sides of the side plates 10 thereofand the downwardly-extending flange 16 at one side and parallel with thelower end of the front part of the casing, as seen in Fig.

4, said plate 14 being secured in position by lugs or ears 17, formed onthe side flanges or plates 10 and extending through perforations in saidplate 14 and bent laterally, as shown particularly in Fig. 1.

18 indicates a plate or arm constituting the support for the finder andbent over at one end to form an eye for the passage of a pin or rivet19, extending between the lugs or flanges on the lower side of thefinder-casing, said plate being also provided with alongitudinally-extending slot or recess 20 for the reception of the bentend of a slotted link 21, pivoted at 22 to the finder-casing and adaptedto move back and forth in said slot when the finder is turned on thepivot 19.

23 indicates an arm constructed of spring metal bearing at one en donthe link and preferably provided with a hooked end 24', extending in theslot of the link 21, said plate having its arm bent down at the otherend and extending beyond the end of the support or plate 18 and securedin position bya rivet or screw 25, passing through the plate 18 andentering the camera-front or other support to t which the finder is tobe attached.

In order to make the spring-arm 23 a little more resilient, the latteris cut away at 26 on three sides and around its securing-screw; but thisconstruction is not deemed essential, although it is preferred,

Inasmuch as the finder-casing is pivoted at one of its corners and thesupport 18 is adapted to be applied to the camera on either edge at onecorner thereof, as shown in Fig. 1, it will be seen that the finder canbe turned to a vertical or horizontal position on its pivot 19 and willbe held securely in either position of adjustment by the spring-arm 23bearing on the link, said spring operating upon the link to hold theouter free side of the easing uppermost and moved away from the plate 18in one position, as shown in Fig. 1, this motion being limited by theengagement of the hooked end of the spring with the link and of thehooked end of the link with the plate 18, or either or both, and whenthe finder is turned down tothe position shown in Fig. 3 the pressure ofthe spring will tend to keep it in this position, preventing itsaccidental movement.

The finder is preferably provided with a hood or cover 30, pivoted at 31to the forward edge of the casing by a rod or pin 32, so as to enablethe operator to more readily observe the image thrown upon the mirrorand reflected upward.

The finder as a whole is attractive in appearance and may be readilyapplied to any camera or other structure, but is particularly adapted tocameras of that class in which the lens-snpportis movable within arecess formed in the camera-casing proper, as the holding devices forthe finder are of such nature that they prevent its movement outward toa position which would prevent the camera-front from moving within thecasing.

I claim as my invention- 1. The combination with a support, of a finderpivoted thereto, a link pivoted to the finder, and a spring operating onthe link to hold the finder in two positions when moved on its pivot.

2. The combination with a finder, of the supporting-plate to which thefinder is pivoted, the link pivoted to the finder and engaging theplate, and the spring on the plate operating on the link laterally ofits pivot to hold the finder in two positions of adjustment.

3. The combination with a finder, the supporting-plate upon which thefinder is pivoted, the link pivoted to the finder and sliding upon theplate, and the spring on the plate operating upon the link intermediateits ends to hold the finder in two positions of adjustment on its pivot.

4:. The combination with the supportingplate having the slot, the finderpivoted on the plate at one corner, the link pivoted to the finder andhaving the lug operating in the slot in the plate, and the springoperating on the link intermediate its ends to hold the finder in twopositions of adjustment on its pivot.

5. The combination with the finder having the flanges, thesupporting-plate having the eye at its end, and the pivotconnectingthem,

of a link connecting the finder and plate and movable upon one of theparts to limit the movementof the former in one direction on its pivot.

6. The combination with a support, of a finder pivoted to the support,and a link pivoted to the finder and sliding upon and engaging thesupport to limit the movement of the finder.

7. The combination with a support, of a finder pivoted thereon, theslotted link pivoted to the finder and sliding upon the'support at oneend, and the spring secured to the support having the projection at theend operating in the slot in the link. 7

8. In a finder, the combination with the casing-section embodying theintegral perforated top and front and the side flanges, of the inclinedback plate, the mirror thereon and the lens in the front of the casing.

9. In a finder, the combination with the casing-section embodying theintegral perforated top and front and the side flanges, of the inclinedback plate, the mirror thereon, the bottom platehaving the flange, thesupport, the pivot engaging the front, and the flange on the bottomplate and journaled in the support.

' FRANK A. BROWNELL. Witnesses:

JOHN E. LENAHAN, ,F. F. CHURCH.

IIO

